| 摘要 |
<p>First, densities are measured of a set of detecting patches having an equal number of lines and different area ratios between a printing area and a non-printing area, a set of detecting patches having an equal area ratio between a printing area and a non-printing area and different numbers of lines, and solid patches. Next, area ratios S relating to quantities of dampening water are calculated by using density of the set of detecting patches having the equal number of lines and different area ratios between the printing area and non-printing area, and density of the solid patches. Then, coefficients N relating to emulsification rates of ink are calculated by using density of the set of detecting patches having the equal area ratio between the printing area and non-printing area and different numbers of lines, and the density of the solid patches. Finally, a feed rate of dampening water is adjusted by using the area ratios S and coefficients N. <IMAGE></p> |
